Australian teen speaks out after being brutally assaulted at a sleepover

An Australian teenager who was left unrecognisable after allegedly being beaten up at a sleepover has spoken out.

On March 11, the 13-year-old girl arrived at a home in Tewantin, Queensland for what she thought was a sleepover with her 'friends,' but she was brutally beaten for at least four hours.

Police allegedly said the girl was "prevented from leaving and filmed while being assaulted, taunted and cut with a knife over the period of several hours."

The victim and her mother spoke to 7News about the alleged assault and the mother said her daughter was "unrecognisable".

"I have visions of my daughter on the floor, just seeing her face for the first time and the way she called out my name when she [saw] me," the victim's mother told 7NEWS.

The mother said they asked her daughter if she was alone before walking into the house.

When 7News asked the 13-year-old about the attack she said "it was traumatic, really. It will take me a long time to recover from this."

Three girls aged 12, 13 and 14 were all charged with offences including assault, deprivation of liberty and committing an indictable offence.

The victim told 7NEWS the alleged attack shook her and her family and they have been staying in temporary accommodation because they are scared to go home.

7NEWS reported the 14-year-old alleged offender was remanded in custody and is set to appear in court in April.

The 13-year-old and 12-year-old alleged offenders are set to appear in the Maroochydore Children's Court in late March.